Largest Countries by Area

Data

Source: Wikipedia — List of countries by area.

Note: What You Should Know About the World's Largest Countries by Land Area

Ranking countries by size sounds like the easiest geography question in the world — but it hides more quirks than you might expect. The list above uses "total area," which means land plus inland water. Depending on who's measuring, which waters they count, and how they treat disputed territory, the same country can come in a few hundred thousand square kilometres larger or smaller. Here's the background worth knowing before you quote these numbers at a party.

How Country Area Is Actually Measured

Nobody holds a giant tape measure. Modern area figures come from satellite imagery, GPS surveys, and geodesy — the science of measuring Earth's curved surface. A few things make measurements tricky:

• The standard unit is the square kilometre (km²), roughly the size of 140 football fields laid side by side.
• Flat maps lie: the Mercator projection stretches high-latitude regions, which is why Russia and Canada look even more enormous on a classroom wall map than they really are.
• Coastlines are fractal — the more zoom you use, the longer they get — so shoreline surveys vary wildly, though this barely affects the total area of a big country.
• Different organizations (Wikipedia, the UN, the CIA World Factbook, national statistics offices) use different conventions, so the same country can show slightly different figures depending on the source.
• Disputed regions — like Aksai Chin between India and China, or Crimea — can be included, excluded, or partially counted, which shifts the totals.

Land vs. Total Area: Why the Numbers Vary

This page's numbers are total area — land plus inland water bodies such as lakes, rivers, and seas enclosed within borders. That choice matters more than you'd think:

• Canada's waters alone make up roughly 9 percent of its area — the highest share in the top 10. It's home to around 60 percent of the world's lakes, more by most counts than every other country combined.
• The United States includes the Great Lakes and coastal waters in its total, which is part of why the USA–China gap at ranks 3 and 4 shrinks or flips depending on the source ("land only" puts China ahead of the US by some measurements).
• Russia's figure includes its huge share of the Caspian Sea — the largest enclosed body of water on Earth, whose official status as "sea" or "lake" is still debated.
• A country's "land area" alone (stripping water) would reorder the list: Russia, Canada, and China stay put, but watery Canada drops further behind the US and Australia gets relatively closer.
• Antarctica (~14.2 million km²) would rank second if it were a country, but it has no permanent residents and is governed by an international treaty — so it never appears on lists like this one.

The Transcontinental Giants

Several of the biggest countries straddle more than one continent, which makes "the largest country in Europe" and "the largest in Asia" slightly trickier questions than they look:

• Russia is the world's only country spanning two continents at this scale: the Ural Mountains mark the Europe–Asia boundary, and while about 75 percent of Russia's territory lies in Asia, the overwhelming majority of its people live on the European side.
• Kazakhstan (rank 9) is technically transcontinental too — a thin slice west of the Ural River sits in Europe, while the rest of the country is Central Asia. It's also the largest landlocked country on Earth.
• The United States is often called transcontinental as well: the 49th state, Alaska, sits on the North American far northwest, and Hawaii lies deep in the Pacific, with territories stretching toward Oceania.
• Elsewhere in the top 100, Turkey, Egypt, Georgia, and Azerbaijan also straddle two continents — but none of them come close to the giants at the top of this list.

Fun Facts to Impress Your Friends

• Russia covers about 17.1 million km² — roughly 11 percent of all land on Earth, and more than Brazil and Australia combined.
• Russia spans 11 time zones, more than any other contiguous country, and it's actually bigger than the planet Pluto by surface area. Yes, really.
• The top 10 countries together cover about 74 million km² — close to half of the world's total land area (about 149 million km²).
• The Canada–US border (about 8,891 km) is the longest international border in the world, and Canada also owns the longest coastline of any country.
• Australia is the only country that occupies an entire continent, and it's the world's driest inhabited one — around 70 percent of it is arid or semi-arid.
• Brazil covers about 47 percent of South America and borders every country on the continent except Chile and Ecuador.
• Argentina is the largest Spanish-speaking country by area, even though Mexico beats it on population.
• Algeria is the biggest country in Africa and the Arab world, and most of its territory is Sahara desert.
• India ranks 7th by size but 2nd by population (~1.4 billion people) — one of the most crowded giants on this list.
• China officially observes a single time zone (Beijing time) across its full width, even though the country geographically spans many.
• Alaska alone (1.7 million km²) is bigger than all but about 15 countries in the world.
• Greenland is the largest island on Earth at ~2.16 million km², but it's not an independent country — it would rank about 12th if it were.

Why Different Sources Disagree

Don't be surprised if you see a slightly different top-10 order elsewhere. The first two ranks (Russia and Canada) are rock solid, but below that, conventions shift the numbers: whether coastal and territorial waters count, whether lakes like the Caspian are included, and how disputed territories are handled all change the totals by enough to shuffle ranks 3–10 between reference works. The takeaway: treat any single figure as "the area according to a specific source," not as an absolute truth handed down from geography heaven.